rpaphp_pci.c revision 56d8456b06ad1316bff3c75caed5e06e786f20d8
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PCI Hot Plug Controller Driver for RPA-compliant PPC64 platform. 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2003 Linda Xie <lxie@us.ibm.com> 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * All rights reserved. 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 8fbb7a2dc2be493c87399550bdc2ddaa510cdf450Bob Moore * it under the terms of the GNU General Public License as published by 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2 of the License, or (at 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * your option) any later version. 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is distributed in the hope that it will be useful, but 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * WITHOUT ANY WARRANTY; without even the implied warranty of 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NON INFRINGEMENT. See the GNU General Public License for more 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * details. 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * You should have received a copy of the GNU General Public License 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * along with this program; if not, write to the Free Software 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Send feedback to <lxie@us.ibm.com> 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/pci-bridge.h> 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/rtas.h> 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/machdep.h> 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "../pci.h" /* for pci_add_new_bus */ 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include "rpaphp.h" 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct pci_bus *find_bus_among_children(struct pci_bus *bus, 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device_node *dn) 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *child = NULL; 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head *tmp; 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device_node *busdn; 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds busdn = pci_bus_to_OF_node(bus); 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (busdn == dn) 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return bus; 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each(tmp, &bus->children) { 45e2f7a7772880458edff1b1cc5a988947229fac26Len Brown child = find_bus_among_children(pci_bus_b(tmp), dn); 46e2f7a7772880458edff1b1cc5a988947229fac26Len Brown if (child) 47e2f7a7772880458edff1b1cc5a988947229fac26Len Brown break; 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return child; 504be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown} 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 52b7a69806308600711589e4ca306d18dd029ef0cfBob Moorestruct pci_bus *rpaphp_find_pci_bus(struct device_node *dn) 53b7a69806308600711589e4ca306d18dd029ef0cfBob Moore{ 54b7a69806308600711589e4ca306d18dd029ef0cfBob Moore if (!dn->phb || !dn->phb->bus) 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return find_bus_among_children(dn->phb->bus, dn); 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 59ba494beeaa69bc0fb01eb89464ad5d57d26e3901Bob MooreEXPORT_SYMBOL_GPL(rpaphp_find_pci_bus); 60ba494beeaa69bc0fb01eb89464ad5d57d26e3901Bob Moore 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint rpaphp_claim_resource(struct pci_dev *dev, int resource) 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct resource *res = &dev->resource[resource]; 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct resource *root = pci_find_parent_resource(dev, res); 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *dtype = resource < PCI_BRIDGE_RESOURCES ? "device" : "bridge"; 6644f6c01242da4e162f28d8e1216a8c7a91174605Robert Moore int err = -EINVAL; 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (root != NULL) { 69b7a69806308600711589e4ca306d18dd029ef0cfBob Moore err = request_resource(root, res); 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 714be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown 724be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown if (err) { 734be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown err("PCI: %s region %d of %s %s [%lx:%lx]\n", 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds root ? "Address space collision on" : 754be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown "No parent found for", 764be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown resource, dtype, pci_name(dev), res->start, res->end); 774be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown } 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 79b229cf92eee616c7cb5ad8cdb35a19b119f00bc8Bob Moore} 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL_GPL(rpaphp_claim_resource); 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 83793c2388cae3fd023b3b5166354931752d42353cBob Moorestatic int rpaphp_get_sensor_state(struct slot *slot, int *state) 84793c2388cae3fd023b3b5166354931752d42353cBob Moore{ 85793c2388cae3fd023b3b5166354931752d42353cBob Moore int rc; 86793c2388cae3fd023b3b5166354931752d42353cBob Moore int setlevel; 87793c2388cae3fd023b3b5166354931752d42353cBob Moore 88793c2388cae3fd023b3b5166354931752d42353cBob Moore rc = rtas_get_sensor(DR_ENTITY_SENSE, slot->index, state); 89793c2388cae3fd023b3b5166354931752d42353cBob Moore 90793c2388cae3fd023b3b5166354931752d42353cBob Moore if (rc < 0) { 91793c2388cae3fd023b3b5166354931752d42353cBob Moore if (rc == -EFAULT || rc == -EEXIST) { 92793c2388cae3fd023b3b5166354931752d42353cBob Moore dbg("%s: slot must be power up to get sensor-state\n", 93793c2388cae3fd023b3b5166354931752d42353cBob Moore __FUNCTION__); 94793c2388cae3fd023b3b5166354931752d42353cBob Moore 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* some slots have to be powered up 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * before get-sensor will succeed. 974be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown */ 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = rtas_set_power_level(slot->power_domain, POWER_ON, 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds &setlevel); 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc < 0) { 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("%s: power on slot[%s] failed rc=%d.\n", 1024be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown __FUNCTION__, slot->name, rc); 1038313524a0d466f451a62709aaedf988d8257b21cBob Moore } else { 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = rtas_get_sensor(DR_ENTITY_SENSE, 1054be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown slot->index, state); 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (rc == -ENODEV) 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info("%s: slot is unusable\n", __FUNCTION__); 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err("%s failed to get sensor state\n", __FUNCTION__); 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1144be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * get_pci_adapter_status - get the status of a slot 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 0-- slot is empty 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1-- adapter is configured 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2-- adapter is not configured 121ba494beeaa69bc0fb01eb89464ad5d57d26e3901Bob Moore * 3-- not valid 122ba494beeaa69bc0fb01eb89464ad5d57d26e3901Bob Moore */ 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint rpaphp_get_pci_adapter_status(struct slot *slot, int is_init, u8 * value) 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *bus; 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int state, rc; 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12844f6c01242da4e162f28d8e1216a8c7a91174605Robert Moore *value = NOT_VALID; 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rc = rpaphp_get_sensor_state(slot, &state); 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto exit; 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1334be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown if (state == EMPTY) 1344be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown *value = EMPTY; 1354be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown else if (state == PRESENT) { 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!is_init) { 137b229cf92eee616c7cb5ad8cdb35a19b119f00bc8Bob Moore /* at run-time slot->state can be changed by */ 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* config/unconfig adapter */ 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *value = slot->state; 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 1414be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown bus = rpaphp_find_pci_bus(slot->dn); 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (bus && !list_empty(&bus->devices)) 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *value = CONFIGURED; 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 1454be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown *value = NOT_CONFIGURED; 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsexit: 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 152ba494beeaa69bc0fb01eb89464ad5d57d26e3901Bob Moore/* Must be called before pci_bus_add_devices */ 153ba494beeaa69bc0fb01eb89464ad5d57d26e3901Bob Moorestatic void 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsrpaphp_fixup_new_pci_devices(struct pci_bus *bus, int fix_bus) 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_dev *dev; 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry(dev, &bus->devices, bus_list) { 15944f6c01242da4e162f28d8e1216a8c7a91174605Robert Moore /* 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Skip already-present devices (which are on the 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * global device list.) 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (list_empty(&dev->global_list)) { 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1664be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown /* Need to setup IOMMU tables */ 1674be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown ppc_md.iommu_dev_setup(dev); 1684be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if(fix_bus) 1704be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown pcibios_fixup_device_resources(dev, bus); 1715df7e6cb42da36c7d878239bebc81907b15f3943Bob Moore pci_read_irq_line(dev); 1724be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown for (i = 0; i < PCI_NUM_RESOURCES; i++) { 1734be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown struct resource *r = &dev->resource[i]; 1744be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown 1754be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown if (r->parent || !r->start || !r->flags) 176b7a69806308600711589e4ca306d18dd029ef0cfBob Moore continue; 1774be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown rpaphp_claim_resource(dev, i); 1784be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown } 1794be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown } 180b229cf92eee616c7cb5ad8cdb35a19b119f00bc8Bob Moore } 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int rpaphp_pci_config_bridge(struct pci_dev *dev) 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 sec_busno; 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *child_bus; 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_dev *child_dev; 1884be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown 1894be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown dbg("Enter %s: BRIDGE dev=%s\n", __FUNCTION__, pci_name(dev)); 1904be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown 1914be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown /* get busno of downstream bus */ 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_read_config_byte(dev, PCI_SECONDARY_BUS, &sec_busno); 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* add to children of PCI bridge dev->bus */ 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds child_bus = pci_add_new_bus(dev->bus, dev, sec_busno); 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!child_bus) { 1978313524a0d466f451a62709aaedf988d8257b21cBob Moore err("%s: could not add second bus\n", __FUNCTION__); 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EIO; 1994be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown } 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds sprintf(child_bus->name, "PCI Bus #%02x", child_bus->number); 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* do pci_scan_child_bus */ 202c45b5c097001480e66d4c523eb715ad317a4ef77Alexey Starikovskiy pci_scan_child_bus(child_bus); 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry(child_dev, &child_bus->devices, bus_list) { 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds eeh_add_device_late(child_dev); 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* fixup new pci devices without touching bus struct */ 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rpaphp_fixup_new_pci_devices(child_bus, 0); 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Make the discovered devices available */ 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_bus_add_devices(child_bus); 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/***************************************************************************** 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rpaphp_pci_config_slot() will configure all devices under the 21852fc0b026e99b5d5d585095148d997d5634bbc25Bob Moore given slot->dn and return the the first pci_dev. 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *****************************************************************************/ 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct pci_dev * 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsrpaphp_pci_config_slot(struct pci_bus *bus) 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 223b7a69806308600711589e4ca306d18dd029ef0cfBob Moore struct device_node *dn = pci_bus_to_OF_node(bus); 224b7a69806308600711589e4ca306d18dd029ef0cfBob Moore struct pci_dev *dev = NULL; 225b7a69806308600711589e4ca306d18dd029ef0cfBob Moore int slotno; 226b7a69806308600711589e4ca306d18dd029ef0cfBob Moore int num; 227b7a69806308600711589e4ca306d18dd029ef0cfBob Moore 228b7a69806308600711589e4ca306d18dd029ef0cfBob Moore dbg("Enter %s: dn=%s bus=%s\n", __FUNCTION__, dn->full_name, bus->name); 229b7a69806308600711589e4ca306d18dd029ef0cfBob Moore if (!dn || !dn->child) 2301f86e8c1c9f129d450fd75e42d25ddba69a522acLv Zheng return NULL; 231b7a69806308600711589e4ca306d18dd029ef0cfBob Moore 232b7a69806308600711589e4ca306d18dd029ef0cfBob Moore slotno = PCI_SLOT(dn->child->devfn); 233b7a69806308600711589e4ca306d18dd029ef0cfBob Moore 2349f15fc666ef54afc7aff31dfa31edecf00e0d81aBob Moore /* pci_scan_slot should find all children */ 2359f15fc666ef54afc7aff31dfa31edecf00e0d81aBob Moore num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0)); 2369f15fc666ef54afc7aff31dfa31edecf00e0d81aBob Moore if (num) { 237b7a69806308600711589e4ca306d18dd029ef0cfBob Moore rpaphp_fixup_new_pci_devices(bus, 1); 238b7a69806308600711589e4ca306d18dd029ef0cfBob Moore pci_bus_add_devices(bus); 239b7a69806308600711589e4ca306d18dd029ef0cfBob Moore } 240b7a69806308600711589e4ca306d18dd029ef0cfBob Moore if (list_empty(&bus->devices)) { 241d4913dc6d0c680aa106d1d80b5ad2a9325367afdBob Moore err("%s: No new device found\n", __FUNCTION__); 242d4913dc6d0c680aa106d1d80b5ad2a9325367afdBob Moore return NULL; 243b7a69806308600711589e4ca306d18dd029ef0cfBob Moore } 244b7a69806308600711589e4ca306d18dd029ef0cfBob Moore list_for_each_entry(dev, &bus->devices, bus_list) { 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rpaphp_pci_config_bridge(dev); 247b7a69806308600711589e4ca306d18dd029ef0cfBob Moore } 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return dev; 250c45b5c097001480e66d4c523eb715ad317a4ef77Alexey Starikovskiy} 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void enable_eeh(struct device_node *dn) 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2544be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown struct device_node *sib; 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (sib = dn->child; sib; sib = sib->sibling) 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds enable_eeh(sib); 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds eeh_add_device_early(dn); 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return; 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2634be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brownstatic void print_slot_pci_funcs(struct pci_bus *bus) 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device_node *dn; 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_dev *dev; 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2688313524a0d466f451a62709aaedf988d8257b21cBob Moore dn = pci_bus_to_OF_node(bus); 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!dn) 2704be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown return; 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("%s: pci_devs of slot[%s]\n", __FUNCTION__, dn->full_name); 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds list_for_each_entry (dev, &bus->devices, bus_list) 2749f15fc666ef54afc7aff31dfa31edecf00e0d81aBob Moore dbg("\t%s\n", pci_name(dev)); 2759f15fc666ef54afc7aff31dfa31edecf00e0d81aBob Moore return; 276b7a69806308600711589e4ca306d18dd029ef0cfBob Moore} 277b7a69806308600711589e4ca306d18dd029ef0cfBob Moore 278b7a69806308600711589e4ca306d18dd029ef0cfBob Mooreint rpaphp_config_pci_adapter(struct pci_bus *bus) 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 280b7a69806308600711589e4ca306d18dd029ef0cfBob Moore struct device_node *dn = pci_bus_to_OF_node(bus); 281b7a69806308600711589e4ca306d18dd029ef0cfBob Moore struct pci_dev *dev; 282c45b5c097001480e66d4c523eb715ad317a4ef77Alexey Starikovskiy int rc = -ENODEV; 283b7a69806308600711589e4ca306d18dd029ef0cfBob Moore 284b7a69806308600711589e4ca306d18dd029ef0cfBob Moore dbg("Entry %s: slot[%s]\n", __FUNCTION__, dn->full_name); 285b7a69806308600711589e4ca306d18dd029ef0cfBob Moore if (!dn) 286e6917317c0f6a930442c40dc38a6f21710adf961Jesper Juhl goto exit; 287b7a69806308600711589e4ca306d18dd029ef0cfBob Moore 288b7a69806308600711589e4ca306d18dd029ef0cfBob Moore enable_eeh(dn); 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dev = rpaphp_pci_config_slot(bus); 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!dev) { 29195abccb576c44bc593e05fa1245d0ad26ce6107bBob Moore err("%s: can't find any devices.\n", __FUNCTION__); 29295abccb576c44bc593e05fa1245d0ad26ce6107bBob Moore goto exit; 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 294d4913dc6d0c680aa106d1d80b5ad2a9325367afdBob Moore print_slot_pci_funcs(bus); 295d4913dc6d0c680aa106d1d80b5ad2a9325367afdBob Moore rc = 0; 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsexit: 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("Exit %s: rc=%d\n", __FUNCTION__, rc); 2989f15fc666ef54afc7aff31dfa31edecf00e0d81aBob Moore return rc; 2999f15fc666ef54afc7aff31dfa31edecf00e0d81aBob Moore} 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL_GPL(rpaphp_config_pci_adapter); 3014be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown 3024be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brownstatic void rpaphp_eeh_remove_bus_device(struct pci_dev *dev) 3034be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown{ 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds eeh_remove_device(dev); 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) { 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_bus *bus = dev->subordinate; 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head *ln; 308d4913dc6d0c680aa106d1d80b5ad2a9325367afdBob Moore if (!bus) 309d4913dc6d0c680aa106d1d80b5ad2a9325367afdBob Moore return; 3104be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown for (ln = bus->devices.next; ln != &bus->devices; ln = ln->next) { 3114be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown struct pci_dev *pdev = pci_dev_b(ln); 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pdev) 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rpaphp_eeh_remove_bus_device(pdev); 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 316d4913dc6d0c680aa106d1d80b5ad2a9325367afdBob Moore } 317d4913dc6d0c680aa106d1d80b5ad2a9325367afdBob Moore return; 3184be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown} 3194be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint rpaphp_unconfig_pci_adapter(struct slot *slot) 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 32295abccb576c44bc593e05fa1245d0ad26ce6107bBob Moore struct pci_dev *dev, *tmp; 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int retval = 0; 32495abccb576c44bc593e05fa1245d0ad26ce6107bBob Moore 32595abccb576c44bc593e05fa1245d0ad26ce6107bBob Moore list_for_each_entry_safe(dev, tmp, slot->pci_devs, bus_list) { 32695abccb576c44bc593e05fa1245d0ad26ce6107bBob Moore rpaphp_eeh_remove_bus_device(dev); 32795abccb576c44bc593e05fa1245d0ad26ce6107bBob Moore pci_remove_bus_device(dev); 32895abccb576c44bc593e05fa1245d0ad26ce6107bBob Moore } 32995abccb576c44bc593e05fa1245d0ad26ce6107bBob Moore 33095abccb576c44bc593e05fa1245d0ad26ce6107bBob Moore slot->state = NOT_CONFIGURED; 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds info("%s: devices in slot[%s] unconfigured.\n", __FUNCTION__, 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds slot->name); 3334be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown return retval; 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int setup_pci_hotplug_slot_info(struct slot *slot) 337b7a69806308600711589e4ca306d18dd029ef0cfBob Moore{ 338b7a69806308600711589e4ca306d18dd029ef0cfBob Moore dbg("%s Initilize the PCI slot's hotplug->info structure ...\n", 339b7a69806308600711589e4ca306d18dd029ef0cfBob Moore __FUNCTION__); 340ba494beeaa69bc0fb01eb89464ad5d57d26e3901Bob Moore rpaphp_get_power_status(slot, &slot->hotplug_slot->info->power_status); 341b7a69806308600711589e4ca306d18dd029ef0cfBob Moore rpaphp_get_pci_adapter_status(slot, 1, 342b7a69806308600711589e4ca306d18dd029ef0cfBob Moore &slot->hotplug_slot->info-> 343b7a69806308600711589e4ca306d18dd029ef0cfBob Moore adapter_status); 344b7a69806308600711589e4ca306d18dd029ef0cfBob Moore if (slot->hotplug_slot->info->adapter_status == NOT_VALID) { 345b7a69806308600711589e4ca306d18dd029ef0cfBob Moore err("%s: NOT_VALID: skip dn->full_name=%s\n", 346b7a69806308600711589e4ca306d18dd029ef0cfBob Moore __FUNCTION__, slot->dn->full_name); 347b7a69806308600711589e4ca306d18dd029ef0cfBob Moore return -EINVAL; 348b7a69806308600711589e4ca306d18dd029ef0cfBob Moore } 349b7a69806308600711589e4ca306d18dd029ef0cfBob Moore return 0; 350b7a69806308600711589e4ca306d18dd029ef0cfBob Moore} 351b7a69806308600711589e4ca306d18dd029ef0cfBob Moore 35278e25fef2751434f38c7f711ecbf8762f79f7318Lv Zhengstatic void set_slot_name(struct slot *slot) 35378e25fef2751434f38c7f711ecbf8762f79f7318Lv Zheng{ 35467a119f990063f5662574f6d6414fe9bc5ece86aBob Moore struct pci_bus *bus = slot->bus; 35515b8dd53f5ffaf8e2d9095c423f713423f576c0fBob Moore struct pci_dev *bridge; 356b7a69806308600711589e4ca306d18dd029ef0cfBob Moore 3579f15fc666ef54afc7aff31dfa31edecf00e0d81aBob Moore bridge = bus->self; 3589f15fc666ef54afc7aff31dfa31edecf00e0d81aBob Moore if (bridge) 359b7a69806308600711589e4ca306d18dd029ef0cfBob Moore strcpy(slot->name, pci_name(bridge)); 360b7a69806308600711589e4ca306d18dd029ef0cfBob Moore else 361b7a69806308600711589e4ca306d18dd029ef0cfBob Moore sprintf(slot->name, "%04x:%02x:00.0", pci_domain_nr(bus), 362b7a69806308600711589e4ca306d18dd029ef0cfBob Moore bus->number); 363b7a69806308600711589e4ca306d18dd029ef0cfBob Moore} 36415b8dd53f5ffaf8e2d9095c423f713423f576c0fBob Moore 36515b8dd53f5ffaf8e2d9095c423f713423f576c0fBob Moorestatic int setup_pci_slot(struct slot *slot) 36615b8dd53f5ffaf8e2d9095c423f713423f576c0fBob Moore{ 36715b8dd53f5ffaf8e2d9095c423f713423f576c0fBob Moore struct device_node *dn = slot->dn; 368b7a69806308600711589e4ca306d18dd029ef0cfBob Moore struct pci_bus *bus; 369b7a69806308600711589e4ca306d18dd029ef0cfBob Moore 370b7a69806308600711589e4ca306d18dd029ef0cfBob Moore BUG_ON(!dn); 3719f15fc666ef54afc7aff31dfa31edecf00e0d81aBob Moore bus = rpaphp_find_pci_bus(dn); 3729f15fc666ef54afc7aff31dfa31edecf00e0d81aBob Moore if (!bus) { 373b7a69806308600711589e4ca306d18dd029ef0cfBob Moore err("%s: no pci_bus for dn %s\n", __FUNCTION__, dn->full_name); 374b7a69806308600711589e4ca306d18dd029ef0cfBob Moore goto exit_rc; 375b7a69806308600711589e4ca306d18dd029ef0cfBob Moore } 376b7a69806308600711589e4ca306d18dd029ef0cfBob Moore 377b7a69806308600711589e4ca306d18dd029ef0cfBob Moore slot->bus = bus; 378b7a69806308600711589e4ca306d18dd029ef0cfBob Moore slot->pci_devs = &bus->devices; 379b7a69806308600711589e4ca306d18dd029ef0cfBob Moore set_slot_name(slot); 380b7a69806308600711589e4ca306d18dd029ef0cfBob Moore 38115b8dd53f5ffaf8e2d9095c423f713423f576c0fBob Moore /* find slot's pci_dev if it's not empty */ 382b7a69806308600711589e4ca306d18dd029ef0cfBob Moore if (slot->hotplug_slot->info->adapter_status == EMPTY) { 383b7a69806308600711589e4ca306d18dd029ef0cfBob Moore slot->state = EMPTY; /* slot is empty */ 384b7a69806308600711589e4ca306d18dd029ef0cfBob Moore } else { 385b7a69806308600711589e4ca306d18dd029ef0cfBob Moore /* slot is occupied */ 386b7a69806308600711589e4ca306d18dd029ef0cfBob Moore if (!dn->child) { 387b7a69806308600711589e4ca306d18dd029ef0cfBob Moore /* non-empty slot has to have child */ 388b7a69806308600711589e4ca306d18dd029ef0cfBob Moore err("%s: slot[%s]'s device_node doesn't have child for adapter\n", 389b7a69806308600711589e4ca306d18dd029ef0cfBob Moore __FUNCTION__, slot->name); 390b7a69806308600711589e4ca306d18dd029ef0cfBob Moore goto exit_rc; 391b7a69806308600711589e4ca306d18dd029ef0cfBob Moore } 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (slot->hotplug_slot->info->adapter_status == NOT_CONFIGURED) { 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("%s CONFIGURING pci adapter in slot[%s]\n", 395ba494beeaa69bc0fb01eb89464ad5d57d26e3901Bob Moore __FUNCTION__, slot->name); 396ba494beeaa69bc0fb01eb89464ad5d57d26e3901Bob Moore if (rpaphp_config_pci_adapter(slot->bus)) { 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err("%s: CONFIG pci adapter failed\n", __FUNCTION__); 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto exit_rc; 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (slot->hotplug_slot->info->adapter_status != CONFIGURED) { 402ba494beeaa69bc0fb01eb89464ad5d57d26e3901Bob Moore err("%s: slot[%s]'s adapter_status is NOT_VALID.\n", 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __FUNCTION__, slot->name); 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto exit_rc; 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds print_slot_pci_funcs(slot->bus); 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!list_empty(slot->pci_devs)) { 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds slot->state = CONFIGURED; 4094be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown } else { 4104be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown /* DLPAR add as opposed to 4114be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown * boot time */ 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds slot->state = NOT_CONFIGURED; 413b229cf92eee616c7cb5ad8cdb35a19b119f00bc8Bob Moore } 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4154be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown return 0; 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsexit_rc: 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dealloc_slot_struct(slot); 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint register_pci_slot(struct slot *slot) 422ba494beeaa69bc0fb01eb89464ad5d57d26e3901Bob Moore{ 423ba494beeaa69bc0fb01eb89464ad5d57d26e3901Bob Moore int rc = -EINVAL; 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (setup_pci_hotplug_slot_info(slot)) 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto exit_rc; 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (setup_pci_slot(slot)) 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto exit_rc; 42944f6c01242da4e162f28d8e1216a8c7a91174605Robert Moore rc = register_slot(slot); 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsexit_rc: 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint rpaphp_enable_pci_slot(struct slot *slot) 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4364be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown int retval = 0, state; 4374be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown 4384be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown retval = rpaphp_get_sensor_state(slot, &state); 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (retval) 440b229cf92eee616c7cb5ad8cdb35a19b119f00bc8Bob Moore goto exit; 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("%s: sensor state[%d]\n", __FUNCTION__, state); 4424be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown /* if slot is not empty, enable the adapter */ 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (state == PRESENT) { 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("%s : slot[%s] is occupied.\n", __FUNCTION__, slot->name); 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds retval = rpaphp_config_pci_adapter(slot->bus); 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!retval) { 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds slot->state = CONFIGURED; 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("%s: PCI devices in slot[%s] has been configured\n", 449ba494beeaa69bc0fb01eb89464ad5d57d26e3901Bob Moore __FUNCTION__, slot->name); 450ba494beeaa69bc0fb01eb89464ad5d57d26e3901Bob Moore } else { 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds slot->state = NOT_CONFIGURED; 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dbg("%s: no pci_dev struct for adapter in slot[%s]\n", 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __FUNCTION__, slot->name); 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (state == EMPTY) { 45644f6c01242da4e162f28d8e1216a8c7a91174605Robert Moore dbg("%s : slot[%s] is empty\n", __FUNCTION__, slot->name); 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds slot->state = EMPTY; 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err("%s: slot[%s] is in invalid state\n", __FUNCTION__, 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds slot->name); 4614be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown slot->state = NOT_VALID; 4624be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown retval = -EINVAL; 4634be44fcd3bf648b782f4460fd06dfae6c42ded4bLen Brown } 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsexit: 465b229cf92eee616c7cb5ad8cdb35a19b119f00bc8Bob Moore dbg("%s - Exit: rc[%d]\n", __FUNCTION__, retval); 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return retval; 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds